Home / 28,580.85-39,441.87-15,834.42

Finding the Fourth Proportional to 28,580.85, 39,441.87 and 15,834.42

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Solution

The fourth proportional to 28,580.85, 39,441.87 and 15,834.42 is: 21,851.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.85 : 39,441.87 = 15,834.42 : x
  2. Step 2: Convert to fraction form
    28,580.85/39,441.87 = 15,834.42/x
  3. Step 3: Cross multiply
    28,580.85x = 39,441.87 × 15,834.42
  4. Step 4: Simplify right side
    28,580.85x = 624,539,135.17
  5. Step 5: Solve for x
    x = 624,539,135.17/28,580.85
  6. Step 6: Final answer
    x = 21,851.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.